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  2. DDR4 SDRAM - Wikipedia

    en.wikipedia.org/wiki/DDR4_SDRAM

    Double Data Rate 4 Synchronous Dynamic Random-Access Memory (DDR4 SDRAM) is a type of synchronous dynamic random-access memory with a high bandwidth ("double data rate") interface. Released to the market in 2014, [2][3][4] it is a variant of dynamic random-access memory (DRAM), some of which have been in use since the early 1970s, [5] and a ...

  3. DDR SDRAM - Wikipedia

    en.wikipedia.org/wiki/DDR_SDRAM

    DDR SDRAM. Double Data Rate Synchronous Dynamic Random-Access Memory (DDR SDRAM) is a double data rate (DDR) synchronous dynamic random-access memory (SDRAM) class of memory integrated circuits used in computers. DDR SDRAM, also retroactively called DDR1 SDRAM, has been superseded by DDR2 SDRAM, DDR3 SDRAM, DDR4 SDRAM and DDR5 SDRAM.

  4. ThinkPad P series - Wikipedia

    en.wikipedia.org/wiki/ThinkPad_P_series

    It comes with a variety of "high-end" options such as Intel Xeon E3-1500M v5 processors, 4K IPS screens and DDR4 ECC RAM up to 64 GB. 1080p screens and 6th generation Core CPUs come standard along with PCI Express SSDs. The P series introduced a cooling system known as FLEX (Full Load Experience) that features two fans connected by a heat pipe ...

  5. ThinkPad E series - Wikipedia

    en.wikipedia.org/wiki/ThinkPad_E_series

    The new E540 includes new Intel 4th Gen Core (Haswell-MB) processors, 1920x1080 FHD Screen options, and Nvidia Graphics. The ThinkPad Edge E545 was released in 2013, as an update to the ThinkPad Edge E535. The new E545 includes new AMD Richland Series APUs and AMD Graphics. Model. Dimensions (mm) Weight (min) CPU.

  6. Double data rate - Wikipedia

    en.wikipedia.org/wiki/Double_data_rate

    In computing, double data rate (DDR) describes a computer bus that transfers data on both the rising and falling edges of the clock signal and hence doubles the memory bandwidth by transferring data twice per clock cycle. [1][2][3] This is also known as double pumped, dual-pumped, and double transition. The term toggle mode is used in the ...

  7. Synchronous dynamic random-access memory - Wikipedia

    en.wikipedia.org/wiki/Synchronous_dynamic_random...

    PC133 is a computer memory standard defined by the JEDEC. PC133 refers to SDR SDRAM operating at a clock frequency of 133 MHz, on a 64-bit-wide bus, at a voltage of 3.3 V. PC133 is available in 168-pin DIMM and 144-pin SO-DIMM form factors. PC133 is the fastest and final SDR SDRAM standard ever approved by the JEDEC, and delivers a bandwidth of ...